_EC 5.3.3.1 Steroid Delta-isomerase. 78 PDB entries  
EC 5.-.-.- Isomerases. [2,271 PDB entries]
EC 5.3.-.- Intramolecular oxidoreductases. [866 PDB entries]
EC 5.3.3.- Transposing C==C bonds. [220 PDB entries]
EC 5.3.3.1 Steroid Delta-isomerase. [78 PDB entries]    
1b4v

Reaction: A 3-oxo-Delta(5)-steroid = a 3-oxo-Delta(4)-steroid.
 


3-oxo-Delta(5)-steroid
=
3-oxo-Delta(4)-steroid
Molecule diagrams generated from .mol files obtained from the KEGG ftp site.

Other name(s): 3-oxosteroid isomerase. Delta(5)-3-keto steroid isomerase. Delta(5)-3-ketosteroid isomerase. Delta(5)-3-oxosteroid isomerase. Delta(5)-steroid isomerase. Hydroxysteroid isomerase. Steroid isomerase.
Links:   [IntEnz]   [ExPASy]   [KEGG]  

There are 78 PDB entries in enzyme class E.C.5.3.3.1

  PDB code Protein
1b4v
Cholesterol oxidase from streptomyces
Source: Streptomyces sp.. Organism_taxid: 1931
Chain: A (498 residues) CATH domains: 3.50.50.60 3.30.410.10
1b8s
Cholesterol oxidase from streptomyces glu361gln mutant
Source: Streptomyces sp.. Organism_taxid: 1931. Expressed in: escherichia coli. Expression_system_taxid: 562. Expression_system_variant: plyss.
Chain: A (498 residues) CATH domains: 3.50.50.60 3.30.410.10
1buq
Solution structure of delta-5-3-ketosteroid isomerase complexed with the steroid 19-nortestosterone-hemisuccinate
Source: Comamonas testosteroni. Organism_taxid: 285. Expressed in: escherichia coli. Expression_system_taxid: 562. Expression_system_cell_line: bl21/de3. Other_details: pet-25b+gene
Chains: A, B (125 residues) CATH domain: 3.10.450.50
Bound ligand:   Het Group NTH is 67.00% similar to enzyme reactant 3-oxo-Delta(5)-steroid
1c7h
Crystal structure of a mutant r75a in ketosteroid isomerase from psedomonas putida biotype b
Source: Pseudomonas putida. Organism_taxid: 303. Strain: biotype b. Expressed in: escherichia coli. Expression_system_taxid: 562. Expression_system_cell_line: bl21(de3).
Chain: A (123 residues) CATH domain: 3.10.450.50
1cbo
Cholesterol oxidase from streptomyces his447asn mutant
Source: Streptomyces sp.. Organism_taxid: 1931. Expressed in: escherichia coli. Expression_system_taxid: 562. Expression_system_variant: plyss.
Chain: A (498 residues) CATH domains: 3.50.50.60 3.30.410.10
1cc2
Cholesterol oxidase from streptomyces his447gln mutant
Source: Streptomyces sp.. Organism_taxid: 1931. Strain: bl21(de3). Variant: plyss. Expressed in: escherichia coli. Expression_system_taxid: 562. Expression_system_variant: plyss.
Chain: A (498 residues) CATH domains: 3.50.50.60 3.30.410.10
1coy
Crystal structure of cholesterol oxidase complexed with a steroid substrate. Implications for fad dependent alcohol oxidases
Source: Brevibacterium sterolicum. Organism_taxid: 1702
Chain: A (501 residues) CATH domains: 3.50.50.60 3.30.410.10
1cqs
Crystal structure of d103e mutant with equilenineof ksi in pseudomonas putida
Source: Pseudomonas putida. Organism_taxid: 303. Expressed in: escherichia coli. Expression_system_taxid: 562
Chains: A, B (124 residues) CATH domain: 3.10.450.50
Bound ligand:   Het Group EQU is 90.00% similar to enzyme reactant 3-oxo-Delta(5)-steroid
1dmm
Crystal structures of mutant enzymes y57f of ketosteroid isomerase from pseudomonas putida biotype b
Source: Pseudomonas putida. Organism_taxid: 303. Expressed in: escherichia coli. Expression_system_taxid: 562.
Chain: A (123 residues) CATH domain: 3.10.450.50
1dmn
Crystal structure of mutant enzyme y32f/y57f of ketosteroid isomerase from pseudomonas putida biotype b
Source: Pseudomonas putida. Organism_taxid: 303. Expressed in: escherichia coli. Expression_system_taxid: 562.
Chain: A (123 residues) CATH domain: 3.10.450.50
1dmq
Crystal structure of mutant enzyme y32f of ketosteroid isomerase from pseudomonas putida biotype b
Source: Pseudomonas putida. Organism_taxid: 303. Expressed in: escherichia coli. Expression_system_taxid: 562.
Chain: A (123 residues) CATH domain: 3.10.450.50
1e3r
Crystal structure of ketosteroid isomerase mutant d40n (d38n ti numbering) from pseudomonas putida complexed with androsten-3beta-ol-17-one
Source: Pseudomonas putida. Organism_taxid: 303. Expressed in: escherichia coli. Expression_system_taxid: 562
Chains: A, B (126 residues) CATH domain: 3.10.450.50
Bound ligand:   Het Group AND is 86.00% similar to enzyme reactant 3-oxo-Delta(5)-steroid
1e3v
Crystal structure of ketosteroid isomerase from psedomonas putida complexed with deoxycholate
Source: Pseudomonas putida. Organism_taxid: 303. Expressed in: escherichia coli. Expression_system_taxid: 562
Chains: A, B (128 residues) CATH domain: 3.10.450.50
Bound ligand:   Het Group DXC is 71.00% similar to enzyme reactant 3-oxo-Delta(5)-steroid
1e97
Crystal structure of ketosteroid isomerase from pseudomonas putida ; triple mutant y16f/y32f/y57f
Source: Pseudomonas putida. Organism_taxid: 303. Expressed in: escherichia coli. Expression_system_taxid: 562
Chain: A (123 residues) CATH domain: 3.10.450.50
1ea2
Pseudoreversion of the catalytic activity of y14f by the additional tyrosine-to-phenylalanine substitution(s) in the hydrogen bond network of delta-5-3-ketosteroid isomerase from pheudomonas putida biotype b
Source: Pseudomonas putida. Organism_taxid: 303. Expressed in: escherichia coli. Expression_system_taxid: 562
Chain: A (123 residues) CATH domain: 3.10.450.50
1gs3
High resolution crystal structure of pi delta-5-3-ketosteroid isomerase mutants y30f/y55f/y115f/ d38n (y32f/y57f/y119f/d40n, pi numbering)complexed with equilenin at 2.1 a resolution
Source: Pseudomonas putida. Organism_taxid: 303. Strain: biotype b. Expressed in: escherichia coli. Expression_system_taxid: 469008.
Chain: A (123 residues) CATH domain: 3.10.450.50
Bound ligand:   Het Group EQU is 90.00% similar to enzyme reactant 3-oxo-Delta(5)-steroid
1ijh
Cholesterol oxidase from streptomyces asn485leu mutant
Source: Streptomyces sp.. Organism_taxid: 1931. Gene: choa. Expressed in: escherichia coli. Expression_system_taxid: 562.
Chain: A (498 residues) CATH domains: 3.50.50.60 3.30.410.10
1isk
3-oxo-delta5-steroid isomerase, nmr, 20 structures
Source: Comamonas testosteroni. Organism_taxid: 285. Atcc: 11996. Expressed in: escherichia coli. Expression_system_taxid: 562.
Chains: A, B (125 residues) CATH domain: 3.10.450.50
1k41
Crystal structure of ksi y57s mutant
Source: Pseudomonas putida. Organism_taxid: 303. Expressed in: escherichia coli. Expression_system_taxid: 562
Chains: A, B (121 residues) CATH domain: 3.10.450.50
1mxt
Atomic resolution structure of cholesterol oxidase (streptomyces sp. Sa-coo)
Source: Streptomyces sp.. Organism_taxid: 1931. Gene: choa. Expressed in: escherichia coli. Expression_system_taxid: 562.
Chain: A (499 residues) CATH domains: 3.50.50.60 3.30.410.10
1n1p
Atomic resolution structure of cholesterol oxidase @ ph 7.4 (streptomyces sp. Sa-coo)
Source: Streptomyces sp.. Organism_taxid: 1931. Gene: choa. Expressed in: escherichia coli. Expression_system_taxid: 562.
Chain: A (499 residues) CATH domains: 3.50.50.60 3.30.410.10
1n4u
Cholesterol oxidase from streptomyces @ ph 4.5 (streptomyces coo)
Source: Streptomyces sp.. Organism_taxid: 74576. Strain: sa-coo. Gene: choa. Expressed in: escherichia coli. Expression_system_taxid: 562.
Chain: A (499 residues) CATH domains: 3.50.50.60 3.30.410.10
1n4v
Atomic resolution structure of cholesterol oxidase @ph 5.8 (streptomyces sp. Sa-coo)
Source: Streptomyces sp.. Organism_taxid: 74576. Strain: sa-coo. Gene: choa. Expressed in: escherichia coli. Expression_system_taxid: 562.
Chain: A (499 residues) CATH domains: 3.50.50.60 3.30.410.10
1n4w
Atomic resolution structure of cholesterol oxidase @ ph 7.3 (streptomyces sp. Sa-coo)
Source: Streptomyces sp.. Organism_taxid: 74576. Strain: sa-coo. Gene: choa. Expressed in: escherichia coli. Expression_system_taxid: 562.
Chain: A (499 residues) CATH domains: 3.50.50.60 3.30.410.10
1ocv
The f116w mutant structure of ketosteroid isomerase from comamonas testosteroni
Source: Comamonas testosteroni. Organism_taxid: 285. Expressed in: escherichia coli. Expression_system_taxid: 469008.
Chains: A, B, C, D (125 residues) CATH domain: 3.10.450.50
1ogx
High resolution crystal structure of ketosteroid isomerase mutant d40n(d38n, ti numbering) from pseudomonas putida complexed with equilenin at 2.0 a resolution.
Source: Pseudomonas putida. Organism_taxid: 303. Strain: bl21(de3). Expressed in: escherichia coli. Expression_system_taxid: 469008.
Chains: A, B (126 residues) CATH domain: 3.10.450.50
Bound ligand:   Het Group EQU is 90.00% similar to enzyme reactant 3-oxo-Delta(5)-steroid
1ogz
Crystal structure of 5-3-ketosteroid isomerase mutants p39a complexed with equilenin from pseudomonas testosteroni
Source: Comamonas testosteroni. Organism_taxid: 285. Expressed in: escherichia coli. Expression_system_taxid: 511693.
Chain: A (125 residues) CATH domain: 3.10.450.50
Bound ligand:   Het Group EQU is 90.00% similar to enzyme reactant 3-oxo-Delta(5)-steroid
1oh0
Crystal structure of ketosteroid isomerase complexed with equilenin
Source: Pseudomonas putida. Organism_taxid: 303. Expressed in: escherichia coli. Expression_system_taxid: 469008.
Chains: A, B (125 residues) CATH domain: 3.10.450.50
Bound ligand:   Het Group EQU is 90.00% similar to enzyme reactant 3-oxo-Delta(5)-steroid
1oho
Crystal structure of ketosteroid isomerase y16f/d40n mutant complexed with equilenin
Source: Pseudomonas putida. Organism_taxid: 303. Expressed in: escherichia coli. Expression_system_taxid: 469008.
Chain: A (123 residues) CATH domain: 3.10.450.50
Bound ligand:   Het Group EQU is 90.00% similar to enzyme reactant 3-oxo-Delta(5)-steroid
1ohp
Crystal structure of 5-3-ketosteroid isomerase mutant d38n from pseudomonas testosteroni complexed with 5alpha-estran-3,17-dione
Source: Pseudomonas testosteroni. Organism_taxid: 285. Expressed in: escherichia coli. Expression_system_taxid: 469008.
Chains: A, B, C, D (125 residues) CATH domain: 3.10.450.50
Bound ligand:   Het Group ESR is 90.48% similar to enzyme reactant 3-oxo-Delta(5)-steroid
1ohs
Crystal structure of 5-3-ketosteroid isomerase mutant y14f/ d38n from pseudomonas testosteroni complexed with androstanedione
Source: Pseudomonas testosteroni. Organism_taxid: 285. Expressed in: escherichia coli. Expression_system_taxid: 469008.
Chains: A, B, C, D (125 residues) CATH domain: 3.10.450.50
Bound ligand:   Het Group 5SD is 86.00% similar to enzyme reactant 3-oxo-Delta(5)-steroid
1opy
Ksi
Source: Pseudomonas putida. Organism_taxid: 303. Strain: biotype b. Expressed in: escherichia coli. Expression_system_taxid: 562.
Chain: A (123 residues) CATH domain: 3.10.450.50
1qjg
Crystal structure of delta5-3-ketosteroid isomerase from pseudomonas testosteroni in complex with equilenin
Source: Pseudomonas testosteroni. Organism_taxid: 285
Chains: A, B, C, D, E, F (125 residues) CATH domain: 3.10.450.50
Bound ligand:   Het Group EQU is 90.00% similar to enzyme reactant 3-oxo-Delta(5)-steroid
1vzz
Crystal structure of mutant enzyme y32f/d103l of ketosteroid isomerase from pseudomonas putida biotype b
Source: Pseudomonas putida. Organism_taxid: 303. Expressed in: escherichia coli. Expression_system_taxid: 562.
Chains: A, B (120 residues) CATH domain: 3.10.450.50
1w00
Crystal structure of mutant enzyme d103l of ketosteroid isomerase from pseudomonas putida biotype b
Source: Pseudomonas putida. Organism_taxid: 303. Expressed in: escherichia coli. Expression_system_taxid: 469008.
Chains: A, B (125 residues) CATH domain: 3.10.450.50
1w01
Crystal structure of mutant enzyme y57f/d103l of ketosteroid isomerase from pseudomonas putida biotype b
Source: Pseudomonas putida. Organism_taxid: 303. Expressed in: escherichia coli. Expression_system_taxid: 469008.
Chains: A, B (125 residues) CATH domain: 3.10.450.50
1w02
Crystal structure of mutant enzyme y16f/d103l of ketosteroid isomerase from pseudomonas putida biotype b
Source: Pseudomonas putida. Organism_taxid: 303. Expressed in: escherichia coli. Expression_system_taxid: 469008.
Chain: A (120 residues) CATH domain: 3.10.450.50
1w6y
Crystal structure of a mutant w92a in ketosteroid isomerase (ksi) from pseudomonas putida biotype b
Source: Pseudomonas putida. Organism_taxid: 303. Expressed in: escherichia coli. Expression_system_taxid: 469008.
Chain: A (126 residues) CATH domain: 3.10.450.50
Bound ligand:   Het Group EQU is 90.00% similar to enzyme reactant 3-oxo-Delta(5)-steroid
2b32
Crystal structure of ketosteroid isomerase d40n from pseudomonas putida (pksi) with bound phenol.
Source: Pseudomonas putida. Bacteria. Gene: ksi. Expressed in: escherichia coli.
Chains: A, B, C, D (123 residues) CATH domain: 3.10.450.50
2gew
Atomic resolution structure of cholesterol oxidase @ ph 9.0 (streptomyces sp. Sa-coo)
Source: Streptomyces sp.. Organism_taxid: 74576. Strain: sa-coo. Gene: choa. Expressed in: escherichia coli. Expression_system_taxid: 562.
Chain: A (501 residues) CATH domains: 3.50.50.60 3.30.410.10
2inx
Crystal structure of ketosteroid isomerase d40n from pseudomonas putida (pksi) with bound 2,6-difluorophenol
Source: Pseudomonas putida. Organism_taxid: 303. Gene: ksi. Expressed in: escherichia coli bl21. Expression_system_taxid: 511693.
Chain: A (123 residues) CATH domain: 3.10.450.50
2pzv
Crystal structure of ketosteroid isomerase d40n from pseudomonas putida (pksi) with bound phenol
Source: Pseudomonas putida. Organism_taxid: 303. Gene: ksi. Expressed in: escherichia coli bl21. Expression_system_taxid: 511693.
Chains: A, B, C, D (123 residues) CATH domain: 3.10.450.50
3b3r
Crystal structure of streptomyces cholesterol oxidase h447q/ mutant bound to glycerol (0.98a)
Source: Streptomyces sp.. Organism_taxid: 74576. Strain: sa-coo. Expressed in: escherichia coli. Expression_system_taxid: 562.
Chain: A (503 residues) CATH domains: 3.50.50.60 3.30.410.10
3b6d
Crystal structure of streptomyces cholesterol oxidase h447q/ mutant (1.2a)
Source: Streptomyces sp.. Organism_taxid: 74576. Strain: sa-coo. Gene: choa. Expressed in: escherichia coli. Expression_system_taxid: 562.
Chain: A (498 residues) CATH domains: 3.50.50.60 3.30.410.10
3cnj
Cholesterol oxidase from streptomyces sp. F359w mutant (0.95
Source: Streptomyces sp.. Organism_taxid: 74576. Strain: sa-coo. Gene: choa. Expressed in: escherichia coli. Expression_system_taxid: 562.
Chain: A (499 residues) CATH domains: 3.50.50.60 3.30.410.10
3cox
Crystal structure of cholesterol oxidase complexed with a steroid substrate. Implications for fad dependent alcohol oxidases
Source: Brevibacterium sterolicum. Organism_taxid: 1702
Chain: A (500 residues) CATH domains: 3.50.50.60 3.30.410.10
3cpo
Crystal structure of ketosteroid isomerase d40n with bound 2-fluorophenol
Source: Pseudomonas putida. Organism_taxid: 303. Gene: ksi. Expressed in: escherichia coli. Expression_system_taxid: 562.
Chain: A (122 residues) CATH domain: 3.10.450.50
3fzw
Crystal structure of ketosteroid isomerase d40n-d103n from p putida (pksi) with bound equilenin
Source: Pseudomonas putida. Organism_taxid: 303. Gene: ksi. Expressed in: escherichia coli. Expression_system_taxid: 562.
Chains: A, B (127 residues) CATH domain: 3.10.450.50
Bound ligand:   Het Group EQU is 90.48% similar to enzyme reactant 3-oxo-Delta(5)-steroid
3gyi
Cholesterol oxidase from streptomyces sp. N485d mutant (1.0a
Source: Streptomyces sp.. Organism_taxid: 74576. Strain: sa-coo. Gene: choa. Expressed in: escherichia coli. Expression_system_taxid: 562
Chain: A (498 residues) CATH domains: 3.50.50.60 3.30.410.10
3gyj
Cholesterol oxidase from streptomyces sp. N485l mutant (0.92
Source: Streptomyces sp.. Organism_taxid: 74576. Strain: sa-coo. Gene: choa. Expressed in: escherichia coli. Expression_system_taxid: 562
Chain: A (498 residues) CATH domains: 3.50.50.60 3.30.410.10
3ipt
Crystal structure of ketosteroid isomerase y16s/d40n from ps putida with bound equilenin
Source: Pseudomonas putida. Organism_taxid: 303. Gene: ksi. Expressed in: escherichia coli bl21(de3). Expression_system_taxid: 469008.
Chains: A, B, C, D (124 residues) CATH domain: 3.10.450.50
Bound ligand:   Het Group EQU is 90.00% similar to enzyme reactant 3-oxo-Delta(5)-steroid
3m8c
Crystal structure of ketosteroid isomerase d99n from pseudomonas testosteroni (tksi) with equilenin bound
Source: Comamonas testosteroni. Pseudomonas testosteroni. Organism_taxid: 285. Gene: ksi. Expressed in: escherichia coli. Expression_system_taxid: 562.
Chains: A, B, C, D (124 residues) CATH domain: 3.10.450.50
Bound ligand:   Het Group EQU is 90.00% similar to enzyme reactant 3-oxo-Delta(5)-steroid
3mhe
Crystal structure of ketosteroid isomerase p39a from pseudom testosteroni (tksi)
Source: Comamonas testosteroni. Pseudomonas testosteroni. Organism_taxid: 285. Strain: atcc 11996. Gene: ksi. Expressed in: escherichia coli. Expression_system_taxid: 511693.
Chains: A, B (120 residues) CATH domain: 3.10.450.50
3mki
Crystal structure of ketosteroid isomerase d38ed99n from pse testosteroni (tksi)
Source: Comamonas testosteroni. Pseudomonas testosteroni. Organism_taxid: 285. Strain: atcc 11996. Gene: ksi. Expressed in: escherichia coli. Expression_system_taxid: 511693.
Chains: A, B, C, D (124 residues) CATH domain: 3.10.450.50
3myt
Crystal structure of ketosteroid isomerase d38hd99n from pse testosteroni (tksi)
Source: Comamonas testosteroni. Pseudomonas testosteroni. Organism_taxid: 285. Strain: atc 11996. Gene: ksi. Expressed in: escherichia coli. Expression_system_taxid: 511693.
Chains: A, B, C, D (124 residues) CATH domain: 3.10.450.50
Bound ligand:   Het Group EQU is 90.48% similar to enzyme reactant 3-oxo-Delta(5)-steroid
3nbr
Crystal structure of ketosteroid isomerase d38np39gd99n from pseudomonas testosteroni (tksi) with 4-androstene-3,17-dion
Source: Comamonas testosteroni. Pseudomonas testosteroni. Organism_taxid: 285. Strain: atc 11996. Gene: ksi. Expressed in: escherichia coli. Expression_system_taxid: 511693.
Chain: A (124 residues) CATH domain: 3.10.450.50
Bound ligand:   Het Group ASD is 95.24% similar to enzyme reactant 3-oxo-Delta(5)-steroid
3nhx
Crystal structure of ketosteroid isomerase d99n from pseudom testosteroni (tksi) with 4-androstene-3,17-dione bound
Source: Comamonas testosteroni. Pseudomonas testosteroni. Organism_taxid: 285. Strain: atc 11996. Gene: ksi. Expressed in: escherichia coli. Expression_system_taxid: 511693.
Chain: A (125 residues) CATH domain: 3.10.450.50
Bound ligand:   Het Group ASD is 95.24% similar to enzyme reactant 3-oxo-Delta(5)-steroid
3nm2
Crystal structure of ketosteroid isomerase d38ep39gv40gs42g pseudomonas testosteroni (tksi)
Source: Comamonas testosteroni. Pseudomonas testosteroni. Organism_taxid: 285. Strain: atc 11996. Gene: ksi. Expressed in: escherichia coli. Expression_system_taxid: 511693.
Chain: A (125 residues) CATH domain: 3.10.450.50
3nuv
Crystal structure of ketosteroid isomerase d38nd99n from pse testosteroni (tksi) with 4-androstene-3,17-dione bound
Source: Comamonas testosteroni. Pseudomonas testosteroni. Organism_taxid: 285. Strain: atc 11996. Gene: ksi. Expressed in: escherichia coli. Expression_system_taxid: 511693.
Chains: A, B (125 residues) CATH domain: 3.10.450.50
Bound ligand:   Het Group ASD is 95.24% similar to enzyme reactant 3-oxo-Delta(5)-steroid
3nxj
Crystal structure of ketosteroid isomerase d99n from pseudom testosteroni (tksi)
Source: Comamonas testosteroni. Pseudomonas testosteroni. Organism_taxid: 285. Strain: atc 11996. Gene: ksi. Expressed in: escherichia coli. Expression_system_taxid: 511693.
Chains: A, B (125 residues) CATH domain: 3.10.450.50
3ov4
Crystal structure of ketosteroid isomerase p39gv40gs42g from pseudomonas testosteroni (tksi) bound to equilenin
Source: Comamonas testosteroni. Pseudomonas testosteroni. Organism_taxid: 285. Strain: atc 11996. Gene: ksi. Expressed in: escherichia coli. Expression_system_taxid: 511693.
Chains: A, B, C, D (120 residues) CATH domain: 3.10.450.50
Bound ligand:   Het Group EQU is 90.48% similar to enzyme reactant 3-oxo-Delta(5)-steroid
3ows
Crystal structure of ketosteroid isomerase d40n/c69s/c81s/c9 cn from p. Putida with bound equilenin
Source: Pseudomonas putida. Organism_taxid: 303. Gene: ksi. Expressed in: escherichia coli. Expression_system_taxid: 511693.
Chains: A, B, C, D (129 residues) CATH domain: 3.10.450.50
Bound ligand:   Het Group EQU is 90.48% similar to enzyme reactant 3-oxo-Delta(5)-steroid
3owu
Crystal structure of ketosteroid isomerase d40n/c69s/c81s/c9 from p. Putida with bound equilenin
Source: Pseudomonas putida. Organism_taxid: 303. Gene: ksi. Expressed in: escherichia coli. Expression_system_taxid: 511693.
Chains: A, B, C, D (129 residues) CATH domain: 3.10.450.50
Bound ligand:   Het Group EQU is 90.48% similar to enzyme reactant 3-oxo-Delta(5)-steroid
3owy
Crystal structure of ketosteroid isomerase d40n/c69s/c81s/c9 cn from p. Putida with bound equilenin
Source: Pseudomonas putida. Organism_taxid: 303. Gene: ksi. Expressed in: escherichia coli. Expression_system_taxid: 511693.
Chains: A, B, C, D, E, F, G, H (129 residues) CATH domain: 3.10.450.50
Bound ligand:   Het Group EQU is 90.48% similar to enzyme reactant 3-oxo-Delta(5)-steroid
3ox9
Crystal structure of ketosteroid isomerase d40n/c69s/c81s/c9 from p. Putida
Source: Pseudomonas putida. Organism_taxid: 303. Gene: ksi. Expressed in: escherichia coli. Expression_system_taxid: 511693.
Chains: A, B, C, D (129 residues) CATH domain: 3.10.450.50
3oxa
Crystal structure of ketosteroid isomerase d40n/c69s/c81s/c9 cn from p. Putida
Source: Pseudomonas putida. Organism_taxid: 303. Gene: ksi. Expressed in: escherichia coli. Expression_system_taxid: 511693.
Chains: A, B, C, D (129 residues) CATH domain: 3.10.450.50
3rgr
Crystal structure of ketosteroid isomerase m116a from pseudo putida
Source: Pseudomonas putida. Organism_taxid: 303. Gene: ksi. Expressed in: escherichia coli. Expression_system_taxid: 511693.
Chain: A (128 residues) CATH domain: 3.10.450.50
3sed
Crystal structure of ketosteroid isomerase variant m105a fro pseudomonos putida
Source: Pseudomonas putida. Organism_taxid: 303. Gene: ksi. Expressed in: escherichia coli. Expression_system_taxid: 469008.
Chain: A (125 residues) CATH domain: 3.10.450.50
3t8n
Crystal structure of ketosteroid isomerase y16ad103a from ps putida
Source: Pseudomonas putida. Arthrobacter siderocapsulatus. Organism_taxid: 303. Gene: ksi. Expressed in: escherichia coli. Expression_system_taxid: 469008.
Chains: A, B, D, F (129 residues) CATH domain: 3.10.450.50
3t8u
Crystal structure of ketosteroid isomerase y14ay55fd99a from pseudomonas testosteroni
Source: Comamonas testosteroni. Pseudomonas testosteroni. Organism_taxid: 285. Gene: ksi. Expressed in: escherichia coli. Expression_system_taxid: 511693.
Chains: A, B, C, D (123 residues) CATH domain: 3.10.450.50
3unl
Crystal structure of ketosteroid isomerase f54g from pseudom testosteroni
Source: Comamonas testosteroni. Organism_taxid: 285. Gene: ksi. Expressed in: escherichia coli. Expression_system_taxid: 562.
Chains: A, B, C, D (124 residues) CATH domain: 3.10.450.50
3vgn
Crystal structure of ketosteroid isomerase d40n from pseudom putida (pksi) with bound 3-fluoro-4-nitrophenol
Source: Pseudomonas putida. Organism_taxid: 303. Gene: ksi. Expressed in: escherichia coli. Expression_system_taxid: 562.
Chains: A, B (127 residues) CATH domain: 3.10.450.50
3vsy
High-resolution crystal structure of wild-type ksi in the ap neutral ph
Source: Pseudomonas putida. Organism_taxid: 303. Gene: ksi. Expressed in: escherichia coli. Expression_system_taxid: 562.
Chains: A, B (123 residues) CATH domain: 3.10.450.50
4k1u
Crystal structure of delta5-3-ketosteroid isomerase containi and y32f mutations
Source: Pseudomonas putida. Organism_taxid: 303. Gene: ksi. Expressed in: escherichia coli. Expression_system_taxid: 562
Chains: A, B (122 residues) CATH domain: 3.10.450.50
4k1v
Crystal structure of delta5-3-ketosteroid isomerase containi and y57f mutations
Source: Pseudomonas putida. Organism_taxid: 303. Gene: ksi. Expressed in: escherichia coli. Expression_system_taxid: 562
Chain: A (123 residues) CATH domain: 3.10.450.50
4l7k
Crystal structure of ketosteroid isomerase d38e from pseudom testosteroni (tksi)
Source: Comamonas testosteroni. Organism_taxid: 285. Strain: atc 11996. Gene: ksi. Expressed in: escherichia coli. Expression_system_taxid: 511693.
Chains: A, B, C, D, E, F, G, H, I, J, K, O (123 residues) CATH domain: 3.10.450.50
4tsu
Crystal structure of ketosteroid isomerase complexed with inhibitor
Source: Pseudomonas putida. Expressed in: escherichia coli.
Chains: A, B (123 residues) CATH domain: 3.10.450.50
Bound ligand:   Het Group EQU is 90.00% similar to enzyme reactant 3-oxo-delta(5)-steroid
8cho
Crystal structure of delta5-3-ketosteroid isomerase from pseudomonas testosteroni
Source: Comamonas testosteroni. Organism_taxid: 285
Chain: A (125 residues) CATH domain: 3.10.450.50